Gizzmo Super Skimmer Plug - 16 Inches Length With 1-1/2 and 2 Inch Threads monitors_PPM/pH and durability has set the

and durability has set the standard for medium- and high-head performance in the pool industry for many years

This commercial grade pool ladder has 2 plastic steps for swimmers to get in and out of your pool

FRP has excellent electrical insulation properties

The clock does require one AA battery (not included)

The Chemtrol PC5100 dual controller operates like a computer with full-screen displays and direct access to all menus and submenus

Gizzmo Super Skimmer Plug - 16 Inches Length With 1-1/2 and 2 Inch Threads monitors_PPM/pH and durability has set theThe Super Gizzmo is 16 inches in length and has both 1 1 2 inch and 2 inch threads. It is designed to absorb the expansion of winter freeze up in most swimming pool skimmers. This Gizzmo installs in big deep skimmers of most inground swimming pools. The Super Gizzmo features a generous bar style handle. The double threads offer convenience by accommodating most skimmers with one item.